Pumping system

Details Pumping system Pumping system

1978-02-27

1980-01-22

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Cyclically operable reciprocating or oscillating motor or...

60430, 60486, 91304, 417900, F15B 1309

Patent

active

041843312

ABSTRACT:
A pumping system for pumping liquid clay or slip into a filter press comprises a hydraulically-powered double-acting ram for pumping the slip and a hydraulic control circuit for the ram. The control circuit includes a pair of hydraulic pumps one of which provides a high pressure, low volume delivery and the other of which provides a low pressure high volume delivery, and valves controlling the supply of oil from these pumps to the ram according to the resistance encountered by the ram.

REFERENCES:
patent: 1848006 (1932-03-01), Ferris
patent: 2419375 (1947-04-01), Shartle

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